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<a name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a name="2" href="#2">2</a>   <em class="jxr_comment"> *  Copyright 2001-2005 Stephen Colebourne</em>
<a name="3" href="#3">3</a>   <em class="jxr_comment"> *</em>
<a name="4" href="#4">4</a>   <em class="jxr_comment"> *  Licensed under the Apache License, Version 2.0 (the "License");</em>
<a name="5" href="#5">5</a>   <em class="jxr_comment"> *  you may not use this file except in compliance with the License.</em>
<a name="6" href="#6">6</a>   <em class="jxr_comment"> *  You may obtain a copy of the License at</em>
<a name="7" href="#7">7</a>   <em class="jxr_comment"> *</em>
<a name="8" href="#8">8</a>   <em class="jxr_comment"> *      <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a name="9" href="#9">9</a>   <em class="jxr_comment"> *</em>
<a name="10" href="#10">10</a>  <em class="jxr_comment"> *  Unless required by applicable law or agreed to in writing, software</em>
<a name="11" href="#11">11</a>  <em class="jxr_comment"> *  distributed under the License is distributed on an "AS IS" BASIS,</em>
<a name="12" href="#12">12</a>  <em class="jxr_comment"> *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a name="13" href="#13">13</a>  <em class="jxr_comment"> *  See the License for the specific language governing permissions and</em>
<a name="14" href="#14">14</a>  <em class="jxr_comment"> *  limitations under the License.</em>
<a name="15" href="#15">15</a>  <em class="jxr_comment"> */</em>
<a name="16" href="#16">16</a>  <strong class="jxr_keyword">package</strong> org.goda.time.chrono;
<a name="17" href="#17">17</a>  
<a name="18" href="#18">18</a>  <strong class="jxr_keyword">import</strong> java.util.HashMap;
<a name="19" href="#19">19</a>  <strong class="jxr_keyword">import</strong> java.util.Map;
<a name="20" href="#20">20</a>  
<a name="21" href="#21">21</a>  <strong class="jxr_keyword">import</strong> org.goda.time.Chronology;
<a name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> org.goda.time.DateTime;
<a name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> org.goda.time.DateTimeConstants;
<a name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> org.goda.time.DateTimeField;
<a name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> org.goda.time.DateTimeZone;
<a name="26" href="#26">26</a>  <strong class="jxr_keyword">import</strong> org.goda.time.field.SkipDateTimeField;
<a name="27" href="#27">27</a>  
<a name="28" href="#28">28</a>  <em class="jxr_javadoccomment">/**</em>
<a name="29" href="#29">29</a>  <em class="jxr_javadoccomment"> * Implements the Ethiopic calendar system, which defines every fourth year as</em>
<a name="30" href="#30">30</a>  <em class="jxr_javadoccomment"> * leap, much like the Julian calendar. The year is broken down into 12 months,</em>
<a name="31" href="#31">31</a>  <em class="jxr_javadoccomment"> * each 30 days in length. An extra period at the end of the year is either 5</em>
<a name="32" href="#32">32</a>  <em class="jxr_javadoccomment"> * or 6 days in length. In this implementation, it is considered a 13th month.</em>
<a name="33" href="#33">33</a>  <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a name="34" href="#34">34</a>  <em class="jxr_javadoccomment"> * Year 1 in the Ethiopic calendar began on August 29, 8 CE (Julian), thus</em>
<a name="35" href="#35">35</a>  <em class="jxr_javadoccomment"> * Ethiopic years do not begin at the same time as Julian years. This chronology</em>
<a name="36" href="#36">36</a>  <em class="jxr_javadoccomment"> * is not proleptic, as it does not allow dates before the first Ethiopic year.</em>
<a name="37" href="#37">37</a>  <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a name="38" href="#38">38</a>  <em class="jxr_javadoccomment"> * This implementation defines a day as midnight to midnight exactly as per</em>
<a name="39" href="#39">39</a>  <em class="jxr_javadoccomment"> * the ISO chronology. Some references indicate that a coptic day starts at</em>
<a name="40" href="#40">40</a>  <em class="jxr_javadoccomment"> * sunset on the previous ISO day, but this has not been confirmed and is not</em>
<a name="41" href="#41">41</a>  <em class="jxr_javadoccomment"> * implemented.</em>
<a name="42" href="#42">42</a>  <em class="jxr_javadoccomment"> * &lt;p&gt;</em>
<a name="43" href="#43">43</a>  <em class="jxr_javadoccomment"> * EthiopicChronology is thread-safe and immutable.</em>
<a name="44" href="#44">44</a>  <em class="jxr_javadoccomment"> *</em>
<a name="45" href="#45">45</a>  <em class="jxr_javadoccomment"> * @see &lt;a href="<a href="http://en.wikipedia.org/wiki/Ethiopian_calendar" target="alexandria_uri">http://en.wikipedia.org/wiki/Ethiopian_calendar</a>"&gt;Wikipedia&lt;/a&gt;</em>
<a name="46" href="#46">46</a>  <em class="jxr_javadoccomment"> *</em>
<a name="47" href="#47">47</a>  <em class="jxr_javadoccomment"> * @author Brian S O'Neill</em>
<a name="48" href="#48">48</a>  <em class="jxr_javadoccomment"> * @author Stephen Colebourne</em>
<a name="49" href="#49">49</a>  <em class="jxr_javadoccomment"> * @since 1.2</em>
<a name="50" href="#50">50</a>  <em class="jxr_javadoccomment"> */</em>
<a name="51" href="#51">51</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/goda/time/chrono/EthiopicChronology.html">EthiopicChronology</a> <strong class="jxr_keyword">extends</strong> <a href="../../../../org/goda/time/chrono/BasicFixedMonthChronology.html">BasicFixedMonthChronology</a> {
<a name="52" href="#52">52</a>  
<a name="53" href="#53">53</a>      <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Serialization lock */</em>
<a name="54" href="#54">54</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">long</strong> serialVersionUID = -5972804258688333942L;
<a name="55" href="#55">55</a>  
<a name="56" href="#56">56</a>      <em class="jxr_javadoccomment">/**</em>
<a name="57" href="#57">57</a>  <em class="jxr_javadoccomment">     * Constant value for 'Ethiopean Era', equivalent</em>
<a name="58" href="#58">58</a>  <em class="jxr_javadoccomment">     * to the value returned for AD/CE.</em>
<a name="59" href="#59">59</a>  <em class="jxr_javadoccomment">     */</em>
<a name="60" href="#60">60</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> EE = DateTimeConstants.CE;
<a name="61" href="#61">61</a>  
<a name="62" href="#62">62</a>      <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> A singleton era field. */</em>
<a name="63" href="#63">63</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../org/goda/time/DateTimeField.html">DateTimeField</a> ERA_FIELD = <strong class="jxr_keyword">new</strong> <a href="../../../../org/goda/time/chrono/BasicSingleEraDateTimeField.html">BasicSingleEraDateTimeField</a>(<span class="jxr_string">"EE"</span>);
<a name="64" href="#64">64</a>  
<a name="65" href="#65">65</a>      <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> The lowest year that can be fully supported. */</em>
<a name="66" href="#66">66</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> MIN_YEAR = -292269337;
<a name="67" href="#67">67</a>  
<a name="68" href="#68">68</a>      <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> The highest year that can be fully supported. */</em>
<a name="69" href="#69">69</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> MAX_YEAR = 292272984;
<a name="70" href="#70">70</a>  
<a name="71" href="#71">71</a>      <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Cache of zone to chronology arrays */</em>
<a name="72" href="#72">72</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Map cCache = <strong class="jxr_keyword">new</strong> HashMap();
<a name="73" href="#73">73</a>  
<a name="74" href="#74">74</a>      <em class="jxr_javadoccomment">/**</em><em class="jxr_javadoccomment"> Singleton instance of a UTC <a href="../../../../org/goda/time/chrono/EthiopicChronology.html">EthiopicChronology</a> */</em>
<a name="75" href="#75">75</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../org/goda/time/chrono/EthiopicChronology.html">EthiopicChronology</a> INSTANCE_UTC;
<a name="76" href="#76">76</a>      <strong class="jxr_keyword">static</strong> {
<a name="77" href="#77">77</a>          <em class="jxr_comment">// init after static fields</em>
<a name="78" href="#78">78</a>          INSTANCE_UTC = getInstance(DateTimeZone.UTC);
<a name="79" href="#79">79</a>      }
<a name="80" href="#80">80</a>  
<a name="81" href="#81">81</a>      <em class="jxr_comment">//-----------------------------------------------------------------------</em>
<a name="82" href="#82">82</a>      <em class="jxr_javadoccomment">/**</em>
<a name="83" href="#83">83</a>  <em class="jxr_javadoccomment">     * Gets an instance of the EthiopicChronology.</em>
<a name="84" href="#84">84</a>  <em class="jxr_javadoccomment">     * The time zone of the returned instance is UTC.</em>
<a name="85" href="#85">85</a>  <em class="jxr_javadoccomment">     * </em>
<a name="86" href="#86">86</a>  <em class="jxr_javadoccomment">     * @return a singleton UTC instance of the chronology</em>
<a name="87" href="#87">87</a>  <em class="jxr_javadoccomment">     */</em>
<a name="88" href="#88">88</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../org/goda/time/chrono/EthiopicChronology.html">EthiopicChronology</a> getInstanceUTC() {
<a name="89" href="#89">89</a>          <strong class="jxr_keyword">return</strong> INSTANCE_UTC;
<a name="90" href="#90">90</a>      }
<a name="91" href="#91">91</a>  
<a name="92" href="#92">92</a>      <em class="jxr_javadoccomment">/**</em>
<a name="93" href="#93">93</a>  <em class="jxr_javadoccomment">     * Gets an instance of the EthiopicChronology in the default time zone.</em>
<a name="94" href="#94">94</a>  <em class="jxr_javadoccomment">     * </em>
<a name="95" href="#95">95</a>  <em class="jxr_javadoccomment">     * @return a chronology in the default time zone</em>
<a name="96" href="#96">96</a>  <em class="jxr_javadoccomment">     */</em>
<a name="97" href="#97">97</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../org/goda/time/chrono/EthiopicChronology.html">EthiopicChronology</a> getInstance() {
<a name="98" href="#98">98</a>          <strong class="jxr_keyword">return</strong> getInstance(DateTimeZone.getDefault(), 4);
<a name="99" href="#99">99</a>      }
<a name="100" href="#100">100</a> 
<a name="101" href="#101">101</a>     <em class="jxr_javadoccomment">/**</em>
<a name="102" href="#102">102</a> <em class="jxr_javadoccomment">     * Gets an instance of the EthiopicChronology in the given time zone.</em>
<a name="103" href="#103">103</a> <em class="jxr_javadoccomment">     * </em>
<a name="104" href="#104">104</a> <em class="jxr_javadoccomment">     * @param zone  the time zone to get the chronology in, null is default</em>
<a name="105" href="#105">105</a> <em class="jxr_javadoccomment">     * @return a chronology in the specified time zone</em>
<a name="106" href="#106">106</a> <em class="jxr_javadoccomment">     */</em>
<a name="107" href="#107">107</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../org/goda/time/chrono/EthiopicChronology.html">EthiopicChronology</a> getInstance(<a href="../../../../org/goda/time/DateTimeZone.html">DateTimeZone</a> zone) {
<a name="108" href="#108">108</a>         <strong class="jxr_keyword">return</strong> getInstance(zone, 4);
<a name="109" href="#109">109</a>     }
<a name="110" href="#110">110</a> 
<a name="111" href="#111">111</a>     <em class="jxr_javadoccomment">/**</em>
<a name="112" href="#112">112</a> <em class="jxr_javadoccomment">     * Gets an instance of the EthiopicChronology in the given time zone.</em>
<a name="113" href="#113">113</a> <em class="jxr_javadoccomment">     * </em>
<a name="114" href="#114">114</a> <em class="jxr_javadoccomment">     * @param zone  the time zone to get the chronology in, null is default</em>
<a name="115" href="#115">115</a> <em class="jxr_javadoccomment">     * @param minDaysInFirstWeek  minimum number of days in first week of the year; default is 4</em>
<a name="116" href="#116">116</a> <em class="jxr_javadoccomment">     * @return a chronology in the specified time zone</em>
<a name="117" href="#117">117</a> <em class="jxr_javadoccomment">     */</em>
<a name="118" href="#118">118</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../org/goda/time/chrono/EthiopicChronology.html">EthiopicChronology</a> getInstance(<a href="../../../../org/goda/time/DateTimeZone.html">DateTimeZone</a> zone, <strong class="jxr_keyword">int</strong> minDaysInFirstWeek) {
<a name="119" href="#119">119</a>         <strong class="jxr_keyword">if</strong> (zone == <strong class="jxr_keyword">null</strong>) {
<a name="120" href="#120">120</a>             zone = DateTimeZone.getDefault();
<a name="121" href="#121">121</a>         }
<a name="122" href="#122">122</a>         <a href="../../../../org/goda/time/chrono/EthiopicChronology.html">EthiopicChronology</a> chrono;
<a name="123" href="#123">123</a>         <strong class="jxr_keyword">synchronized</strong> (cCache) {
<a name="124" href="#124">124</a>             <a href="../../../../org/goda/time/chrono/EthiopicChronology.html">EthiopicChronology</a>[] chronos = (EthiopicChronology[]) cCache.get(zone);
<a name="125" href="#125">125</a>             <strong class="jxr_keyword">if</strong> (chronos == <strong class="jxr_keyword">null</strong>) {
<a name="126" href="#126">126</a>                 chronos = <strong class="jxr_keyword">new</strong> <a href="../../../../org/goda/time/chrono/EthiopicChronology.html">EthiopicChronology</a>[7];
<a name="127" href="#127">127</a>                 cCache.put(zone, chronos);
<a name="128" href="#128">128</a>             }
<a name="129" href="#129">129</a>             <strong class="jxr_keyword">try</strong> {
<a name="130" href="#130">130</a>                 chrono = chronos[minDaysInFirstWeek - 1];
<a name="131" href="#131">131</a>             } <strong class="jxr_keyword">catch</strong> (ArrayIndexOutOfBoundsException e) {
<a name="132" href="#132">132</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException
<a name="133" href="#133">133</a>                     (<span class="jxr_string">"Invalid min days in first week: "</span> + minDaysInFirstWeek);
<a name="134" href="#134">134</a>             }
<a name="135" href="#135">135</a>             <strong class="jxr_keyword">if</strong> (chrono == <strong class="jxr_keyword">null</strong>) {
<a name="136" href="#136">136</a>                 <strong class="jxr_keyword">if</strong> (zone == DateTimeZone.UTC) {
<a name="137" href="#137">137</a>                     <em class="jxr_comment">// First create without a lower limit.</em>
<a name="138" href="#138">138</a>                     chrono = <strong class="jxr_keyword">new</strong> <a href="../../../../org/goda/time/chrono/EthiopicChronology.html">EthiopicChronology</a>(<strong class="jxr_keyword">null</strong>, <strong class="jxr_keyword">null</strong>, minDaysInFirstWeek);
<a name="139" href="#139">139</a>                     <em class="jxr_comment">// Impose lower limit and make another EthiopicChronology.</em>
<a name="140" href="#140">140</a>                     <a href="../../../../org/goda/time/DateTime.html">DateTime</a> lowerLimit = <strong class="jxr_keyword">new</strong> <a href="../../../../org/goda/time/DateTime.html">DateTime</a>(1, 1, 1, 0, 0, 0, 0, chrono);
<a name="141" href="#141">141</a>                     chrono = <strong class="jxr_keyword">new</strong> <a href="../../../../org/goda/time/chrono/EthiopicChronology.html">EthiopicChronology</a>
<a name="142" href="#142">142</a>                         (LimitChronology.getInstance(chrono, lowerLimit, <strong class="jxr_keyword">null</strong>),
<a name="143" href="#143">143</a>                          <strong class="jxr_keyword">null</strong>, minDaysInFirstWeek);
<a name="144" href="#144">144</a>                 } <strong class="jxr_keyword">else</strong> {
<a name="145" href="#145">145</a>                     chrono = getInstance(DateTimeZone.UTC, minDaysInFirstWeek);
<a name="146" href="#146">146</a>                     chrono = <strong class="jxr_keyword">new</strong> <a href="../../../../org/goda/time/chrono/EthiopicChronology.html">EthiopicChronology</a>
<a name="147" href="#147">147</a>                         (ZonedChronology.getInstance(chrono, zone), <strong class="jxr_keyword">null</strong>, minDaysInFirstWeek);
<a name="148" href="#148">148</a>                 }
<a name="149" href="#149">149</a>                 chronos[minDaysInFirstWeek - 1] = chrono;
<a name="150" href="#150">150</a>             }
<a name="151" href="#151">151</a>         }
<a name="152" href="#152">152</a>         <strong class="jxr_keyword">return</strong> chrono;
<a name="153" href="#153">153</a>     }
<a name="154" href="#154">154</a> 
<a name="155" href="#155">155</a>     <em class="jxr_comment">// Constructors and instance variables</em>
<a name="156" href="#156">156</a>     <em class="jxr_comment">//-----------------------------------------------------------------------</em>
<a name="157" href="#157">157</a>     <em class="jxr_javadoccomment">/**</em>
<a name="158" href="#158">158</a> <em class="jxr_javadoccomment">     * Restricted constructor.</em>
<a name="159" href="#159">159</a> <em class="jxr_javadoccomment">     */</em>
<a name="160" href="#160">160</a>     <a href="../../../../org/goda/time/chrono/EthiopicChronology.html">EthiopicChronology</a>(<a href="../../../../org/goda/time/Chronology.html">Chronology</a> base, Object param, <strong class="jxr_keyword">int</strong> minDaysInFirstWeek) {
<a name="161" href="#161">161</a>         <strong class="jxr_keyword">super</strong>(base, param, minDaysInFirstWeek);
<a name="162" href="#162">162</a>     }
<a name="163" href="#163">163</a> 
<a name="164" href="#164">164</a>     <em class="jxr_javadoccomment">/**</em>
<a name="165" href="#165">165</a> <em class="jxr_javadoccomment">     * Serialization singleton.</em>
<a name="166" href="#166">166</a> <em class="jxr_javadoccomment">     */</em>
<a name="167" href="#167">167</a>     <strong class="jxr_keyword">private</strong> Object readResolve() {
<a name="168" href="#168">168</a>         <a href="../../../../org/goda/time/Chronology.html">Chronology</a> base = getBase();
<a name="169" href="#169">169</a>         <strong class="jxr_keyword">return</strong> base == <strong class="jxr_keyword">null</strong> ?
<a name="170" href="#170">170</a>                 getInstance(DateTimeZone.UTC, getMinimumDaysInFirstWeek()) :
<a name="171" href="#171">171</a>                     getInstance(base.getZone(), getMinimumDaysInFirstWeek());
<a name="172" href="#172">172</a>     }
<a name="173" href="#173">173</a> 
<a name="174" href="#174">174</a>     <em class="jxr_comment">// Conversion</em>
<a name="175" href="#175">175</a>     <em class="jxr_comment">//-----------------------------------------------------------------------</em>
<a name="176" href="#176">176</a>     <em class="jxr_javadoccomment">/**</em>
<a name="177" href="#177">177</a> <em class="jxr_javadoccomment">     * Gets the Chronology in the UTC time zone.</em>
<a name="178" href="#178">178</a> <em class="jxr_javadoccomment">     * </em>
<a name="179" href="#179">179</a> <em class="jxr_javadoccomment">     * @return the chronology in UTC</em>
<a name="180" href="#180">180</a> <em class="jxr_javadoccomment">     */</em>
<a name="181" href="#181">181</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../org/goda/time/Chronology.html">Chronology</a> withUTC() {
<a name="182" href="#182">182</a>         <strong class="jxr_keyword">return</strong> INSTANCE_UTC;
<a name="183" href="#183">183</a>     }
<a name="184" href="#184">184</a> 
<a name="185" href="#185">185</a>     <em class="jxr_javadoccomment">/**</em>
<a name="186" href="#186">186</a> <em class="jxr_javadoccomment">     * Gets the Chronology in a specific time zone.</em>
<a name="187" href="#187">187</a> <em class="jxr_javadoccomment">     * </em>
<a name="188" href="#188">188</a> <em class="jxr_javadoccomment">     * @param zone  the zone to get the chronology in, null is default</em>
<a name="189" href="#189">189</a> <em class="jxr_javadoccomment">     * @return the chronology</em>
<a name="190" href="#190">190</a> <em class="jxr_javadoccomment">     */</em>
<a name="191" href="#191">191</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../org/goda/time/Chronology.html">Chronology</a> withZone(<a href="../../../../org/goda/time/DateTimeZone.html">DateTimeZone</a> zone) {
<a name="192" href="#192">192</a>         <strong class="jxr_keyword">if</strong> (zone == <strong class="jxr_keyword">null</strong>) {
<a name="193" href="#193">193</a>             zone = DateTimeZone.getDefault();
<a name="194" href="#194">194</a>         }
<a name="195" href="#195">195</a>         <strong class="jxr_keyword">if</strong> (zone == getZone()) {
<a name="196" href="#196">196</a>             <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>;
<a name="197" href="#197">197</a>         }
<a name="198" href="#198">198</a>         <strong class="jxr_keyword">return</strong> getInstance(zone);
<a name="199" href="#199">199</a>     }
<a name="200" href="#200">200</a> 
<a name="201" href="#201">201</a>     <em class="jxr_comment">//-----------------------------------------------------------------------</em>
<a name="202" href="#202">202</a>     <strong class="jxr_keyword">long</strong> calculateFirstDayOfYearMillis(<strong class="jxr_keyword">int</strong> year) {
<a name="203" href="#203">203</a>         <em class="jxr_comment">// Java epoch is 1970-01-01 Gregorian which is 1962-04-23 Ethiopic.</em>
<a name="204" href="#204">204</a>         <em class="jxr_comment">// Calculate relative to the nearest leap year and account for the</em>
<a name="205" href="#205">205</a>         <em class="jxr_comment">// difference later.</em>
<a name="206" href="#206">206</a> 
<a name="207" href="#207">207</a>         <strong class="jxr_keyword">int</strong> relativeYear = year - 1963;
<a name="208" href="#208">208</a>         <strong class="jxr_keyword">int</strong> leapYears;
<a name="209" href="#209">209</a>         <strong class="jxr_keyword">if</strong> (relativeYear &lt;= 0) {
<a name="210" href="#210">210</a>             <em class="jxr_comment">// Add 3 before shifting right since /4 and &gt;&gt;2 behave differently</em>
<a name="211" href="#211">211</a>             <em class="jxr_comment">// on negative numbers.</em>
<a name="212" href="#212">212</a>             leapYears = (relativeYear + 3) &gt;&gt; 2;
<a name="213" href="#213">213</a>         } <strong class="jxr_keyword">else</strong> {
<a name="214" href="#214">214</a>             leapYears = relativeYear &gt;&gt; 2;
<a name="215" href="#215">215</a>             <em class="jxr_comment">// For post 1963 an adjustment is needed as jan1st is before leap day</em>
<a name="216" href="#216">216</a>             <strong class="jxr_keyword">if</strong> (!isLeapYear(year)) {
<a name="217" href="#217">217</a>                 leapYears++;
<a name="218" href="#218">218</a>             }
<a name="219" href="#219">219</a>         }
<a name="220" href="#220">220</a>         
<a name="221" href="#221">221</a>         <strong class="jxr_keyword">long</strong> millis = (relativeYear * 365L + leapYears)
<a name="222" href="#222">222</a>             * (<strong class="jxr_keyword">long</strong>)DateTimeConstants.MILLIS_PER_DAY;
<a name="223" href="#223">223</a> 
<a name="224" href="#224">224</a>         <em class="jxr_comment">// Adjust to account for difference between 1963-01-01 and 1962-04-23.</em>
<a name="225" href="#225">225</a> 
<a name="226" href="#226">226</a>         <strong class="jxr_keyword">return</strong> millis + (365L - 112) * DateTimeConstants.MILLIS_PER_DAY;
<a name="227" href="#227">227</a>     }
<a name="228" href="#228">228</a> 
<a name="229" href="#229">229</a>     <em class="jxr_comment">//-----------------------------------------------------------------------</em>
<a name="230" href="#230">230</a>     <strong class="jxr_keyword">int</strong> getMinYear() {
<a name="231" href="#231">231</a>         <strong class="jxr_keyword">return</strong> MIN_YEAR;
<a name="232" href="#232">232</a>     }
<a name="233" href="#233">233</a> 
<a name="234" href="#234">234</a>     <em class="jxr_comment">//-----------------------------------------------------------------------</em>
<a name="235" href="#235">235</a>     <strong class="jxr_keyword">int</strong> getMaxYear() {
<a name="236" href="#236">236</a>         <strong class="jxr_keyword">return</strong> MAX_YEAR;
<a name="237" href="#237">237</a>     }
<a name="238" href="#238">238</a> 
<a name="239" href="#239">239</a>     <em class="jxr_comment">//-----------------------------------------------------------------------</em>
<a name="240" href="#240">240</a>     <strong class="jxr_keyword">long</strong> getApproxMillisAtEpochDividedByTwo() {
<a name="241" href="#241">241</a>         <strong class="jxr_keyword">return</strong> (1962L * MILLIS_PER_YEAR + 112L * DateTimeConstants.MILLIS_PER_DAY) / 2;
<a name="242" href="#242">242</a>     }
<a name="243" href="#243">243</a> 
<a name="244" href="#244">244</a>     <em class="jxr_comment">//-----------------------------------------------------------------------</em>
<a name="245" href="#245">245</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> assemble(<a href="../../../../org/goda/time/chrono/AssembledChronology.html">Fields</a> fields) {
<a name="246" href="#246">246</a>         <strong class="jxr_keyword">if</strong> (getBase() == <strong class="jxr_keyword">null</strong>) {
<a name="247" href="#247">247</a>             <strong class="jxr_keyword">super</strong>.assemble(fields);
<a name="248" href="#248">248</a> 
<a name="249" href="#249">249</a>             <em class="jxr_comment">// Ethiopic, like Julian, has no year zero.</em>
<a name="250" href="#250">250</a>             fields.year = <strong class="jxr_keyword">new</strong> <a href="../../../../org/goda/time/field/SkipDateTimeField.html">SkipDateTimeField</a>(<strong class="jxr_keyword">this</strong>, fields.year);
<a name="251" href="#251">251</a>             fields.weekyear = <strong class="jxr_keyword">new</strong> <a href="../../../../org/goda/time/field/SkipDateTimeField.html">SkipDateTimeField</a>(<strong class="jxr_keyword">this</strong>, fields.weekyear);
<a name="252" href="#252">252</a>             
<a name="253" href="#253">253</a>             fields.era = ERA_FIELD;
<a name="254" href="#254">254</a>             fields.monthOfYear = <strong class="jxr_keyword">new</strong> <a href="../../../../org/goda/time/chrono/BasicMonthOfYearDateTimeField.html">BasicMonthOfYearDateTimeField</a>(<strong class="jxr_keyword">this</strong>, 13);
<a name="255" href="#255">255</a>             fields.months = fields.monthOfYear.getDurationField();
<a name="256" href="#256">256</a>         }
<a name="257" href="#257">257</a>     }
<a name="258" href="#258">258</a> 
<a name="259" href="#259">259</a> }
</pre>
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